Author here - thanks for all the support (and bug reports)!
I built pretty.fish with the belief that Mermaid diagrams don’t have to look like they’re from the 80s and to avoid squinting at Mermaid diagrams that coding agents create in tiny windows.
Having them on canvas also makes it easier to keep a track of, and even visualize agent steps as and when they are are being taken (if you connect an MCP you get a pretty nice view of agent building its knowledge graph for eg for a problem).
Didn’t expect it to take off like this—there are still rough edges (pan/zoom, mobile), but I’m working on smoothing those out soon.
- Write Mermaid diagrams with a live preview.
- Arrange multiple diagrams on an infinite canvas.
- Group diagrams into multi-page projects.
- Better themes
I built pretty.fish with the belief that Mermaid diagrams don’t have to look like they’re from the 80s and to avoid squinting at Mermaid diagrams that coding agents create in tiny windows.
Having them on canvas also makes it easier to keep a track of, and even visualize agent steps as and when they are are being taken (if you connect an MCP you get a pretty nice view of agent building its knowledge graph for eg for a problem).
Didn’t expect it to take off like this—there are still rough edges (pan/zoom, mobile), but I’m working on smoothing those out soon.